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Finding the Fourth Proportional to 21,960.44, 32,942.01 and 8,811.11

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Solution

The fourth proportional to 21,960.44, 32,942.01 and 8,811.11 is: 13,217.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.44 : 32,942.01 = 8,811.11 : x
  2. Step 2: Convert to fraction form
    21,960.44/32,942.01 = 8,811.11/x
  3. Step 3: Cross multiply
    21,960.44x = 32,942.01 × 8,811.11
  4. Step 4: Simplify right side
    21,960.44x = 290,255,673.73
  5. Step 5: Solve for x
    x = 290,255,673.73/21,960.44
  6. Step 6: Final answer
    x = 13,217.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.